VTK - get rid of a few warning caused by duplicate var-use, a comma too much and some minor syntactical stuff
VTK - get rid of a few warning caused by duplicate var-use, a comma too much and some minor syntactical stuff

vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk